21030311231110 has 64 divisors (see below), whose sum is σ = 39531719808000. Its totient is φ = 8047185822720.

The previous prime is 21030311231101. The next prime is 21030311231123. The reversal of 21030311231110 is 1113211303012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53452891 + ... + 53844889.

It is an arithmetic number, because the mean of its divisors is an integer number (617683122000).

Almost surely, 2^{21030311231110} is an apocalyptic number.

21030311231110 is a deficient number, since it is larger than the sum of its proper divisors (18501408576890).

21030311231110 is a wasteful number, since it uses less digits than its factorization.

21030311231110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394481.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 21030311231110 its reverse (1113211303012), we get a palindrome (22143522534122).

The spelling of 21030311231110 in words is "twenty-one trillion, thirty billion, three hundred eleven million, two hundred thirty-one thousand, one hundred ten".